W. Marvin Watson

William Marvin Watson (6 June 1924-26 November 2017) was White House Appointments Secretary from 1 February 1965 to 26 April 1968 (succeeding Kenneth O'Donnell and preceding James R. Jones) and Postmaster General from 26 April 1968 to 20 January 1969 (succeeding Larry O'Brien and preceding Winton M. Blount.

Biography
William Marvin Watson was born in Oakhurst, Texas on 6 June 1924, and he served in the US Marine Corps in the Pacific during World War II. In 1948, he worked on Lyndon B. Johnson's Democratic primary campaign for the US Senate race in Texas, and he rose to become the head of the Texas Democratic Party as one of Johnson's closest allies. In 1960, he helped organize the Kennedy/Johnson campaign in Texas, and Watson served as an independent advisor to Johnson. In 1964, he helped to organize the Democratic National Convention in Atlantic City, New Jersey, where he removed many Kennedy family loyalists from the convention staff to prevent them from forcing Johnson to name Robert F. Kennedy as his running mate. In 1965, Watson became White House Appointments Secretary, effectively making him Johnson's Chief of Staff. He helped to coordinate the passage of much of the Great Society agenda, and he went on to serve as Postmaster General from 1968 to 1969. He declined to serve as Ambassador to Australia under President Richard Nixon, as he sought to spend more time with his family. He served as President of the Dallas Baptist College from 1979 to 1987, and he died in 2017 at the age of 93.